19004020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{135743}}^1$

素因数の和:135759

約数の個数: 24

約数和(自身を含む): 45609984

約数和(自身を除く): 26605964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 135743, 271486, 542972, 678715, 950201, 1357430, 1900402, 2714860, 3800804, 4751005, 9502010, 19004020]

約数ペア:

[(1, 19004020), (2, 9502010), (4, 4751005), (5, 3800804), (7, 2714860), (10, 1900402), (14, 1357430), (20, 950201), (28, 678715), (35, 542972), (70, 271486), (140, 135743)]